DTC P0036: Ho2S Heater Control Circuit (Bank 1, Sensor 2)

P0036 - HO2S HEATER CONTROL CIRCUIT (BANK 1, SENSOR 2)

Description: The PCM controls the heater on and off duty cycle to maintain a calibrated temperature. This DTC sets when the sensor does not warm up to the required temperature in a calibrated amount of time. This DTC also sets when the PCM is not able to maintain the required temperature after the sensor is warm.
Possible Causes: VPWR circuit open HO2S heater circuit open HO2S heater circuit short Incorrect connections Damaged or corroded terminals Exhaust temperature significantly higher than expected Damaged HO2S
Diagnostic Aids: Inspect the connectors for signs of damage, water ingress, or corrosion.
Application	Key On Engine Off	Key On Engine Running	Continuous Memory
All	GO to PINPOINT TEST DW .